Bump rubocop-rspec from 2.11.1 to 2.12.1 (#235)

Bumps [rubocop-rspec](https://github.com/rubocop/rubocop-rspec) from 2.11.1 to 2.12.1.
- [Release notes](https://github.com/rubocop/rubocop-rspec/releases)
- [Changelog](https://github.com/rubocop/rubocop-rspec/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-rspec@v2.11.1...v2.12.1)

---
updated-dependencies:
- dependency-name: rubocop-rspec
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -56,8 +56,8 @@ GEM
       rubocop-ast (>= 0.4.0)
     rubocop-rake (0.6.0)
       rubocop (~> 1.0)
-    rubocop-rspec (2.11.1)
-      rubocop (~> 1.19)
+    rubocop-rspec (2.12.1)
+      rubocop (~> 1.31)
     ruby-progressbar (1.11.0)
     rubyzip (2.3.2)
     simplecov (0.21.2)